Abstract
In this paper, we demonstrate a novel 20-GSample/s burst-mode clock and data recovery (BM-CDR) technique for optical multiaccess networks. The BM-CDR incorporates an injection-locking method for clock recovery and a clock phase aligner employing space sampling with two multiphase clocks at 10 GHz and a phase-picking algorithm for automatic clock phase acquisition. The design provides low latency and fast response without requiring a reset signal from the network layer. The BM-CDR achieves a bit error rate <\ 10 -10 while featuring instantaneous (0-bit) phase acquisition for any phase step (\pm 2\pi\ \hbox{rad}) between successive bursts. We also compare the data with probabilistic theoretical predictions to validate the experimental results.
Original language | English (US) |
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Article number | 6293835 |
Pages (from-to) | 1783-1793 |
Number of pages | 11 |
Journal | IEEE Photonics Journal |
Volume | 4 |
Issue number | 5 |
DOIs | |
State | Published - 2012 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
Keywords
- Access networks
- burst mode (BM)
- clock and data recovery (CDR)
- clock phase aligner (CPA)
- injection locking
- probabilistic theory
- space sampling